What diameter of exhaust for 1000ds engine?
I know this is an impossible question to answear but what is your take on 40mm-45mm-50mm fulle exhaust on 1000ds engine?
Im looking to get my self an exhaust for my 1000 ds projekt which has been tuned a bit 1123cc big bore, hc pistons, cams, porting etc.
Today i have a 2-1 termi full exhaust with 37mm inner dia en aprox 40mm outer dia, that is 3mm smaller then the exhaust valve. Im thinking that that is a bit small and restricting the engine.
I have found a spagetti style header from termi that is 50mm for a good price but im thinking that it might be to big and ill be loosing torque with it. Its the same dia as many 9** exhaust.
Kaemna uses 45mm for there deamon bikes but that doesnt really tell me anything.
Drop ideas impressions etc.
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